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PUBLIC
INHERITING FROM zcl_abapgit_syntax_highlighter
CREATE PUBLIC.
PUBLIC SECTION.
CONSTANTS:
" JSON... This was easy :-)
" JSONC... With comments
BEGIN OF c_css,
keyword TYPE string VALUE 'selectors', "#EC NOTEXT
text TYPE string VALUE 'text', "#EC NOTEXT
values TYPE string VALUE 'properties', "#EC NOTEXT
comment TYPE string VALUE 'comment', "#EC NOTEXT
END OF c_css.
CONSTANTS:
BEGIN OF c_token,
keyword TYPE c VALUE 'K', "#EC NOTEXT
text TYPE c VALUE 'T', "#EC NOTEXT
values TYPE c VALUE 'V', "#EC NOTEXT
comment TYPE c VALUE 'C', "#EC NOTEXT
END OF c_token.
CONSTANTS:
BEGIN OF c_regex,
" comments /* ... */ or //
comment TYPE string VALUE '\/\*.*\*\/|\/\*|\*\/|\/\/', "#EC NOTEXT
" not much here
keyword TYPE string VALUE 'true|false|null', "#EC NOTEXT
" double quoted strings
text TYPE string VALUE '"', "#EC NOTEXT
END OF c_regex.
METHODS constructor.
PROTECTED SECTION.
METHODS order_matches REDEFINITION.
PRIVATE SECTION.
ENDCLASS.
CLASS zcl_abapgit_syntax_json IMPLEMENTATION.
METHOD constructor.
super->constructor( ).
" Initialize instances of regular expression
add_rule( iv_regex = c_regex-keyword
iv_token = c_token-keyword
iv_style = c_css-keyword ).
" Style for keys
add_rule( iv_regex = c_regex-text
iv_token = c_token-text
iv_style = c_css-text ).
" Style for values
add_rule( iv_regex = ''
iv_token = c_token-values
iv_style = c_css-values ).
" JSONC comments
add_rule( iv_regex = c_regex-comment
iv_token = c_token-comment
iv_style = c_css-comment ).
ENDMETHOD.
METHOD order_matches.
DATA:
lv_match TYPE string,
lv_count TYPE i,
lv_line_len TYPE i,
lv_prev_token TYPE c.
FIELD-SYMBOLS:
<ls_prev> TYPE ty_match,
<ls_match> TYPE ty_match.
" Longest matches
SORT ct_matches BY offset length DESCENDING.
lv_line_len = strlen( iv_line ).
LOOP AT ct_matches ASSIGNING <ls_match>.
" Delete matches after open text match
IF lv_prev_token = c_token-text AND <ls_match>-token <> c_token-text.
CLEAR <ls_match>-token.
CONTINUE.
ENDIF.
lv_match = substring( val = iv_line
off = <ls_match>-offset
len = <ls_match>-length ).
IF <ls_match>-token = c_token-text.
<ls_match>-text_tag = lv_match.
IF lv_prev_token = c_token-text.
IF <ls_match>-text_tag = <ls_prev>-text_tag.
<ls_prev>-length = <ls_match>-offset + <ls_match>-length - <ls_prev>-offset.
CLEAR lv_prev_token.
ENDIF.
CLEAR <ls_match>-token.
CONTINUE.
ENDIF.
ENDIF.
lv_prev_token = <ls_match>-token.
ASSIGN <ls_match> TO <ls_prev>.
ENDLOOP.
DELETE ct_matches WHERE token IS INITIAL.
" Switch style of second text match to values
LOOP AT ct_matches ASSIGNING <ls_match> WHERE token = c_token-text.
lv_count = lv_count + 1.
IF lv_count >= 2.
<ls_match>-token = c_token-values.
ENDIF.
ENDLOOP.
ENDMETHOD.
ENDCLASS.
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